RITTER CENTER
NPI 1417370032
Clinic/Center - Federally Qualified Health Center (FQHC) in San Rafael, CA
About Ritter Center NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RITTER CENTER (NPI 1417370032) is a healthcare organization registered as a federally qualified health center (fqhc) in San Rafael, California and active in the NPI registry since February 2014. The organization lists Cia T Byrnes, Executive Director/cmo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ritter Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
19Medicare enrollment records show 19 clinicians reassign Medicare billing to Ritter Center, which bills Medicare for the services they deliver. Of these, 9 practice at this address and 12 within 10 miles. They are listed nearest first.
Clinicians by Medicare Specialty 5
Clinicians, nearest first (19)
Elk Grove, CA 95758
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ritter Center's NPI number?
The NPI number for Ritter Center is 1417370032. It was assigned to this organization in the NPPES registry on February 3, 2014.
Where is Ritter Center located?
Ritter Center is located at 800 A St, San Rafael, CA 94901. The listed phone number is (415) 457-8182.
What is Ritter Center's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Federally Qualified Health Center (FQHC), with taxonomy code 261QF0400X.
Is Ritter Center enrolled in Medicare?
Yes. Ritter Center is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Ritter Center?
According to the CMS Revalidation Reassignment List (October 2026 release), 19 clinicians in 5 Medicare specialties reassign their Medicare billing to Ritter Center. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (10), Clinical Social Worker (5) and Internal Medicine (2). Of these, 9 practice at this address and 12 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Ritter Center was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ritter Center · NPI 1417370032
Federally Qualified Health Center (FQHC) organization in San Rafael, California. Organization record, active in the CMS NPPES registry since February 3, 2014.
## Identity
- **NPI:** 1417370032 (Entity type: Organization)
- **Enumerated:** February 3, 2014
- **Primary specialty:** Clinic/Center - Federally Qualified Health Center (FQHC) · taxonomy 261QF0400X
- **Organization subpart:** No
- **Authorized official:** Cia Byrnes, EXECUTIVE DIRECTOR/CMO
## Practice location
- **Address:** 800 A ST, San Rafael, CA 94901-3011
- **Phone:** (415) 457-8182
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 19 clinicians in 5 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (10), Clinical Social Worker (5), Internal Medicine (2); 9 practice at this address and 12 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 28, 2026
- **Other identifiers:** Medicaid CMM71061F (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1417370032) · Data from the CMS NPPES public registry.